From: jsg <jsg@openbsd.org>
Date: Mon, 9 Jan 2023 04:17:50 +0000 (+0000)
Subject: drm/amdgpu: handle polaris10/11 overlap asics (v2)
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=e10e7b688b5eba6024f9a1eee7b84334ac304568;p=openbsd

drm/amdgpu: handle polaris10/11 overlap asics (v2)

From Alex Deucher
9724e6950ef902abd6abc5b5dfacca4b5125ba75 in linux-6.1.y/6.1.4
1d4624cd72b912b2680c08d0be48338a1629a858 in mainline linux
---

diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_drv.c b/sys/dev/pci/drm/amd/amdgpu/amdgpu_drv.c
index 45c43d64692..7ac810dc165 100644
--- a/sys/dev/pci/drm/amd/amdgpu/amdgpu_drv.c
+++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_drv.c
@@ -2044,6 +2044,15 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 			 "See modparam exp_hw_support\n");
 		return -ENODEV;
 	}
+	/* differentiate between P10 and P11 asics with the same DID */
+	if (pdev->device == 0x67FF &&
+	    (pdev->revision == 0xE3 ||
+	     pdev->revision == 0xE7 ||
+	     pdev->revision == 0xF3 ||
+	     pdev->revision == 0xF7)) {
+		flags &= ~AMD_ASIC_MASK;
+		flags |= CHIP_POLARIS10;
+	}
 
 	/* Due to hardware bugs, S/G Display on raven requires a 1:1 IOMMU mapping,
 	 * however, SME requires an indirect IOMMU mapping because the encryption
@@ -2113,12 +2122,12 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 
 	pci_set_drvdata(pdev, ddev);
 
-	ret = amdgpu_driver_load_kms(adev, ent->driver_data);
+	ret = amdgpu_driver_load_kms(adev, flags);
 	if (ret)
 		goto err_pci;
 
 retry_init:
-	ret = drm_dev_register(ddev, ent->driver_data);
+	ret = drm_dev_register(ddev, flags);
 	if (ret == -EAGAIN && ++retry <= 3) {
 		DRM_INFO("retry init %d\n", retry);
 		/* Don't request EX mode too frequently which is attacking */